Thank you for all your valuable posts. I really appreciate your interest.
I have a Byron Jackson 6X 9X 15 1/2. With a 3 vane 14.5 inch impeller.
The system is rated for 954 GPM and 910 ft head. BEP is at 1350 with 820 ft head. NPSHR is 22 ft at BEP and 10 at rated. We have 80 ft at the pump...
I have an oversized pump that sees excessive vibrations mainly becauses it is running off its BEP. The pumps BEP is 1350 GPM and it runs bwteen 770 GPM and 960 GPM. We have been replacing the thrust bearings yearly, because of high vibration.
At this time we can't change the process, make...